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| Characterization of microflocs for the coagulation optimization by AFM fluid imaging |
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Abstract Atomic force microscopy (AFM) was applied to characterize the morphological changes of microflocs in the coagulation process. By the use of AFM fluid imaging technique, optimized operational conditions for 2 min of mirco-flocculation time and 100 s-1 of the agitation intensity (G value) were obtained in the Micro-Flocculation Filtration of dye-printing industrial tailing wastewater with good performance. It was demonstrated that AFM fluid imaging can be exploited as a useful tool in the in-situ observation and measurement in micro-interfacial processes of the environmental concern.
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Received: 10 June 2011
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